Phenol/aldehyde condensation products useful in the development of colored images from colorless dyes are disclosed. The phenol/aldehyde condensation products are produced by the interaction of an alkyl-substituted salicylic acid, an alkyl-substituted phenol, an aldehyde, and a metal source. The phenol/aldehyde condensation products are particularly useful in a photosensitive imaging system in whi...

A tire slippage preventing device (10) for preventing slippage of the tire of a tire assembly (34) of a vehicle put in a running situation on a snowy road or the like is provided with an arm (16), a base portion (16A) of the arm (16) being mounted to a side of the tire assembly (34), and the intermediate portion (16B) of the arm (16) being flexed so that the end portion (16C) thereof is disposed o...

A control unit for an active suspension system of a vehicle. The control unit includes a longitudinal g sensor for sensing longitudinal g of the vehicle body to generate a longitudinal g signal; and a control instruction quantity calculating circuit for calculating a control instruction quantity of a fluid to be charged into or discharged from each of suspension units in response to the longitudin...

An apparatus for controlling an active suspension system for an automotive vehicle comprises hydraulic suspensions, control valves for independently controlling each of the suspensions and a controller for issuing a signal for controlling of opening/closing of the respective control valves. The apparatus includes a longitudinal g sensor for detecting a longitudinal acceleration of a vehicle body a...

A hydraulic braking system is provided in which the speed of increase of the hydraulic pressure to the wheel cylinders is controlled so that appropriate braking force is ensured while at the same type preventing the road wheels from being positioned in a lock-up condition. In order to provide for such an operation, the locking condition of the road wheels may be detected during braking operation a...

The present invention therefore proposes that a shearing rigidity in respect to a vertical load in the portion near the body bolster (A) of a light weight car body (1) is made larger than that of the portion other than a portion near the body bolster (A). That is, a shearing rigidity in respect to the vertical load of a portion near the portion of body bolster (A) of the car body (1) is improved a...